Rubber Band Force Equation

Displacement 14 12 10 8 f newtons 2 0 0 00 0 02 0 04 0 06 0 08 0 10 0 12 0 14 x meters curve fitting provides the following force vs displacement equation f x 33 55 x 0 4871 where x is in mand f is in n.

Rubber band force equation.

A rubber band is a single molecule as is a latex glove. Elastic potential energy is the stored energy of a compressible or stretchable object like a spring or rubber band or molecule. For example if the pegs are placed such that the band is stretched to 52 inches the force the bands apply to the pegs are 57 6 lbs per inch. W elastic potential energy in joules.

Without this property the rubber band would have no reason to tend towards a tangled state since the entropy would be about the same in both states. Say i have a rubber band wrapped around 2 pegs at a certain distance and at that distance i know the pounds of force per inch it is pulling at. The following figure shows the experimentally obtained measured force vs displacement for a rubber band. Elastic potential energy is equal to the force times the distance of movement.

In this case the linear function fitting the straight part of the data gives a spring constant of 17 38 n m. Rubber band force vs. F force in newtons. Elastic potential energy force x distance of displacement.

After you get the rubber band stretched just a little bit it is very spring like.